S
M
T
W
T
F
S
30
90°
72°
31
92°
72°
1
92°
71°
2
90°
71°
3
86°
70°
4
87°
68°
5
85°
68°
6
86°
69°
7
85°
69°
8
88°
70°
9
88°
70°
10
85°
69°
11
84°
64°
12
87°
69°
13
90°
68°
14
86°
62°
15
84°
62°
16
83°
61°
17
82°
62°
18
83°
63°
19
88°
63°
20
88°
67°
21
87°
66°
22
86°
66°
23
87°
66°
24
85°
62°
25
85°
62°
26
86°
63°
27
86°
62°
28
85°
64°
29
86°
64°
30
86°
63°
1
85°
63°
2
86°
62°
3
85°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Scottsdale
Scottsdale's September 2026 forecast shows daily high temperatures ranging from 82° to 92°, with overnight lows between 57° and 72°. The average high for September is 86° with an average low of 66°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Scottsdale. See also: October | November | December.
